The assimilation of amino-acids by micro-organisms. 16. Changes in sodium and potassium accompanying the accumulation of glutamic acid or lysine by bacteria and yeast

Abstract

1. An acetone extract of the livers of rats dosed with OO-diethyl O-p-nitrophenyl thiophosphate (parathion) has been made, and by paper chromato- graphy the existence of a labile derivative of p- nitrophenol which strongly inhibits cholinesterase in vitro has been detected.